AMD Radeon RX 6600M vs AMD Radeon HD 8690M

VS

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6600M and 2GB VRAM Radeon HD 8690M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600M 's Advantages

Released 8 years and 2 months late

Boost Clock has increased by 148% (2416MHz vs 975MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 32.00GB/s)

1472 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600M +1287%

8.659 TFLOPS

Radeon HD 8690M

0.624 TFLOPS

Radeon RX 6600M

VS

Radeon HD 8690M

Graphics Card

May 2021

Release Date

Mar 2013

Mobility Radeon

Generation

Solar System

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

2068 MHz

Base Clock

925 MHz

2416 MHz

Boost Clock

975 MHz

1750 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

64bit

224.0GB/s

Bandwidth

32.00GB/s

Render Config

-

SM Count

-

28

Compute Units

5

1792

Shading Units

320

112

TMUs

20

64

ROPs

8

-

Tensor Cores

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

128 KB

Theoretical Performance

154.6 GPixel/s

Pixel Rate

7.800 GPixel/s

270.6 GTexel/s

Texture Rate

19.50 GTexel/s

17.32 TFLOPS

FP16 (half)

-

8.659 TFLOPS

FP32 (float)

624.0 GFLOPS

541.2 GFLOPS

FP64 (double)

39.00 GFLOPS

Graphics Processor

Navi 23

GPU Name

Sun

-

GPU Variant

Sun S3 XT (216-0841009)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

0.69 billion

237 mm²

Die Size

56 mm²

Board Design

100W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

-

CUDA

-

6.5

Shader Model

6.5 (5.1)

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